Re: strange error loading kvm module on latest FC6 kernel

[Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>]

[-- Attachment #1: Type: text/plain, Size: 797 bytes --]

Greg M Lee wrote:
> Hi
>   updated to latest FC6 kernel yesterday ie 2.6.19-1.2911.6.5.fc6
> compiled kvm-15 from sourceforge this morning
> chose the unpatched kernel instructions [ was this the right choice ?]
> configure, make, make install all went fine (some warnings here and
> there)
> modprobe kvm-intel gave a bunch of errors in dmesg the first of which
> was:  SELinux: initialized (dev kvmfs, type kvmfs), not configured for
> labeling
>
>   

Ouch.  Anybody here know how to deal with that?

> so I disabled SELinux
> modprobe kvm-intel still gave a bunch of errors in dmesg:
>
> kvm_intel: Unknown symbol gfn_to_memslot
>   

Try with the attached patch.  Unfortunately you also have to reboot.

-- 
Do not meddle in the internals of kernels, for they are subtle and quick to panic.


[-- Attachment #2: module-load-fix.patch --]
[-- Type: text/x-patch, Size: 1173 bytes --]

commit c1a8557e1da6e7d8bf8f77cb1b47c077f5c2a67d
Author: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
Date:   Mon Feb 26 16:29:43 2007 +0200

    KVM: Fix bogus failure in kvm.ko module initialization
    
    A bogus 'return r' can cause an otherwise successful module load to fail.
    This both denies users the use of kvm, and it also denies them the use of
    their machine, as it leaves a filesystem registered with its callbacks
    pointing into now-freed module memory.
    
    Fix by returning a zero like a good module.
    
    Thanks to Richard Lucassen <mailinglists-+AO6ZX++/Fdg9hUCZPvPmw@public.gmane.org> (?) for reporting
    the problem and for providing access to a machine which exhibited it.
    
    Signed-off-by: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>

diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
index e48b4d7..ca82ba3 100644
--- a/drivers/kvm/kvm_main.c
+++ b/drivers/kvm/kvm_main.c
@@ -2540,7 +2540,7 @@ static __init int kvm_init(void)
 	bad_page_address = page_to_pfn(bad_page) << PAGE_SHIFT;
 	memset(__va(bad_page_address), 0, PAGE_SIZE);
 
-	return r;
+	return 0;
 
 out:
 	kvm_exit_debug();

[-- Attachment #3: Type: text/plain, Size: 345 bytes --]

-------------------------------------------------------------------------
Take Surveys. Earn Cash. Influence the Future of IT
Join SourceForge.net's Techsay panel and you'll get the chance to share your
opinions on IT & business topics through brief surveys-and earn cash
http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV

[-- Attachment #4: Type: text/plain, Size: 186 bytes --]

_______________________________________________
kvm-devel mailing list
kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
https://lists.sourceforge.net/lists/listinfo/kvm-devel